MATSON, JACK VINCENT,VAN TEMPLE HIGHT, TERRY,RAKESTRAW, LAWRENCE FREDERICK,ZHANG, ZHIHE,KUECHLER, THOMAS CHARLES
申请号：
EP19900870092
公开号：
EP0403465(A1)
申请日:
1990.06.15
申请国别(地区):
欧洲专利局
年份:
1990
代理人:
摘要：
Improved biocidal composition and method for controlling biofouling and microorganism population levels in recirculating water systems such as cooling towers, swimming pools or spas is disclosed and claimed. The composition comprises a hypochlorite donor and a bromide ion donor in proportions selected to maintain a mole ratio of the sum of all bromine containing species to the sum of all hypohalite species in the recirculating water of about 0.2 to about 20. The method comprises introducing into the recirculating water a mixture or combination of a hypochlorite donor and a bromide ion donor in an amount sufficient to maintain a ratio of the sum of all bromine containing species to the sum of all species in the recirculating water in the range of about 0.2 to about 20. In addition, a bromine volatilization suppressant may be introduced into the recirculating water to inhibit loss of bromide ion through volatilization of bromine containing species formed by reaction of the hypochlorite donor and the bromide ion donor. One or more scale inhibitors and compacting aids may also be added.
